50389013 has 2 divisors, whose sum is σ = 50389014. Its totient is φ = 50389012.

The previous prime is 50388997. The next prime is 50389033. The reversal of 50389013 is 31098305.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31787044 + 18601969 = 5638^2 + 4313^2 .

It is a cyclic number.

It is not a de Polignac number, because 50389013 - 2⁴ = 50388997 is a prime.

It is a super-2 number, since 2×50389013² = 5078105262228338, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50389033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25194506 + 25194507.

It is an arithmetic number, because the mean of its divisors is an integer number (25194507).

Almost surely, 2^50389013 is an apocalyptic number.

It is an amenable number.

50389013 is a deficient number, since it is larger than the sum of its proper divisors (1).

50389013 is an equidigital number, since it uses as much as digits as its factorization.

50389013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 50389013 is about 7098.5218883934. The cubic root of 50389013 is about 369.3561067998.

The spelling of 50389013 in words is "fifty million, three hundred eighty-nine thousand, thirteen".